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The head is the largest and most easily identified portion of the epididymis. It is located superolateral to the upper pole of the testicle and is often seen on paramedian views of the testis. The normal epididymal body and tail are smaller and more variable in position. [citation needed]
Adult human testicle with epididymis: A. Head of epididymis, B. Body of epididymis, C. Tail of epididymis, and D. Vas deferens. Those aged 15 to 35 are most commonly affected. [2] The acute form usually develops over the course of several days, with pain and swelling frequently in only one testis, which will hang low in the scrotum. [3]
3: Lobules of epididymis 4: Body of epididymis 5: Tail of epididymis 6: Duct of epididymis 7: Deferent duct (ductus deferens or vas deferens) Prehn's sign (named after urologist Douglas T. Prehn) [1] is a medical diagnostic indicator that was once believed to help determine whether the presenting testicular pain is caused by acute epididymitis ...
The head (Latin: caput). The head of the epididymis receives spermatozoa via the efferent ducts of the mediastinium of the testis [3] at the superior pole of the testis. [2]: 1296 The head is characterized histologically by a thick epithelium with long stereocilia (described below) and a little smooth muscle. [3]
Epididymal cyst is a harmless sac in the testicles filled with fluid. [2] The most frequent clinical presentation occurs when a routine physical examination yields an unexpected finding, which is then confirmed by scrotal ultrasonography . [ 1 ]
Ultrasound scan showing a side view of Type A3 polyorchidism, with annotations showing the superior and inferior testes and the head and tail of the epididymis Polyorchidism is the incidence of more than two testicles .
Spermatocele is a fluid-filled cyst that develops in the epididymis. [3] The fluid is usually a clear or milky white color and may contain sperm. [4] Spermatoceles are typically filled with spermatozoa [5] and they can vary in size from several millimeters to many centimeters.
Ultrasound image showing tubular ectasia of the rete testis as an incidental finding in an 81 year old male Rete tubular ectasia , also known as cystic transformation of rete testis [ 1 ] is a benign condition, usually found in older men, involving numerous small, tubular cystic structures within the rete testis .